# Will the action potential decay after axon branching?

**URL:** <https://discourse.numenta.org/t/will-the-action-potential-decay-after-axon-branching/7475>\
**Category:** General Neuroscience\
**Tags:** axon, action-potential\
**Created:** [April 28, 2020, 12:56pm UTC](https://discourse.numenta.org/t/will-the-action-potential-decay-after-axon-branching/7475 "2020-04-28T12:56:46Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![OhMyHTM](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/ohmyhtm/32/3141_2.png) [@OhMyHTM](https://discourse.numenta.org/u/OhMyHTM)\
**Post date:** [April 28, 2020, 12:56pm UTC](https://discourse.numenta.org/t/will-the-action-potential-decay-after-axon-branching/7475/1 "2020-04-28T12:56:46Z")

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assuming the branche and the trunk have the same radius and other characteristics.

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**Author:** ![mthiboust](https://yyz2.discourse-cdn.com/flex030/user_avatar/discourse.numenta.org/mthiboust/32/4509_2.png) [@mthiboust](https://discourse.numenta.org/u/mthiboust)\
**Post date:** [April 28, 2020, 1:35pm UTC](https://discourse.numenta.org/t/will-the-action-potential-decay-after-axon-branching/7475/2 "2020-04-28T13:35:06Z")

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Axon branches/collaterals have probably an impact on AP shape & propagation but I would consider those impacts as negligible compared to other characteristics not yet taken into account in ANN.

Though, there seems to be some studies about this (Dominique Debanne):  
[https://hal-amu.archives-ouvertes.fr/hal-01766862/document](https://hal-amu.archives-ouvertes.fr/hal-01766862/document)

 ![image](https://canada1.discourse-cdn.com/flex030/uploads/numenta/original/2X/3/3c2bb029dfb86bb7e48dc9232332a7c67dd542b7.png)  
 ![image](https://canada1.discourse-cdn.com/flex030/uploads/numenta/original/2X/c/c1022e9fd036d7cc52098140d04f05fcb29b1d84.png)